FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Motor Keeps Running After Switch Turned Off

Note: Whenever a wiper motor malfunction occurs, ensure wiper motor wire harness is properly connected before starting with normal diagnosis and repair procedures.
1. Check wiper motor wiring harness for shorts between low speed motor feed terminal three or high speed motor feed terminal two and battery or ignition.
2. Check for faulty wiper intermittent or HI-LO relays, then check circuit from intermittent relay cavity B to HI-Lo relay cavity B for short to battery or ignition.
3. Disconnect body controller 3 connector. Check circuit from terminal 1 of J3 24 way connector to terminal C of intermittent wiper relay for short to ground.
4. Using a suitable voltmeter connect positive lead to terminal 16 of body controller. Connect negative lead to ground.
5. If voltmeter reads greater than zero volts, check wiper switch and wiring.
6. Connect voltmeter positive lead to terminal 10 of body controller connector, of voltmeter read 10 to 15 volts, check circuit for short to battery or ignition. If voltmeter read zero volts, replace body controller.